What exactly does aggressive mean?

My husband's large cell lymphomia is in the bone.  When the grade is aggressive,just how aggressive is it -- how rapidly does it spread as a rule of thumb, if there is one.  He is having two new areas of pain not in the areas of where lymphoma was found 6 wks ago.  Could it be moving this fast?  He is to have another MRI this Friday.  something is impinging on nerves in his neck and causing severe pain in his l. shoulder and now down the arm. 

IF this is fNHL b-cell lymphpoma, then ggressive means the lymphoma shifts from small and or medium cells and become large cells. However, agressive at this stage usually means organ involvement, night sweats, loss of appetite, weight loss, loss of energy. Ask yourself this:

Is he "FEEDING" the cancer UNWITTINGLY?

CANCER LOVES AND NEEDS THREE THINGS TO EXIST.

SUGAR - THE FASTER UPTAKE THE SUGAR THE BETTER FOR THE CANCER. 

STOP EATING SUGAR AND/OR ANY ARTIFICIAL SWEETENER - ESPECIALLY NOT ASPARTAME - AND CUT OUT ALL SUGAR ADDITIVES  OF EVERY SORT, THAT IS IF YOU INTEND TO STARVE THE CANCER CELLS TO DEATH. CANCER CELL DEATH IS THE AIM.

LACK OF OXYGEN, THE MORE ANEROBIC THE BODY IS, NO DEEP BREATHING, NO EXERCISE, NO REBOUNDER USE, THE BETTER FOR THE CANCER

ACIDITY, THE LESS ALKALINE THE BODY THE BETTER - FOR THE CANCER, THAT IS.

PLESE READ WHAT I TRIED, IT IS WORKING.

HE HAS NOTHING TO LOSE. 

P.S.

I do apologize for the necessity of my of using capitals to print my answer. It is the only sure way which avoids my making a ton of spelling errors and I can type much faster by far. My eyesight is not that great. Otherwise A-OK!